How wide BMW 1 Series wheel spacers are good? Do 12mm E88 spacers need longer bolts? Are BMW wheel spacers safe for driving? Here we take this 2011 BMW 1 Series E88 120i as an example. To achieve a perfect flush stance, the owner uses 12mm spacers with four BBS wheels. In the market, there are hub-centric BMW 1 Series wheel spacers and lug-centric spacers.
Usually, a hub-centric wheel spacer is machined to fit the specific vehicle hub. When upgrading with BMW 5×120 spacers, a hub-centric set is always the best option. They allow the BMW 1 Series wheel spacers to sit centered on your hub, rather than dangling off the bolts.
Lightweight BMW 1 Series wheel spacers are absolutely good for those who need spacers to fix wrong offset issues while hoping to keep the added weight as little as possible. In this case, BONOSS forged lightweight plus BMW 1 Series wheel spacers are a good idea. These BONOSS lightweight plus 5×120 spacers come with advanced “Hollow Carved” holes. This design provides lightweight effect while maintaining high strength. Compared with the previous-gen product, they are about 30% weight lighter. Keeping a light sprung weight means better accelerating, cornering, and braking.
Do 12mm E88 Spacers Need Longer Bolts?
Simply, 12mm spacers occupy about 12mm bolt shank which stops the stock E88 M12x1.5 wheel bolts from engaging the full thread depth of the bearing. For instance, if the OE wheel bolt length is 25mm and you get a 12mm wheel spacer installed, it’s probably best to order 37mm bolts right away. BONOSS provides the best ISO grade 12.9 extended wheel bolts for proper fitment. They are fully SGS, TÜV ISO Grade 12.9 certified, tensile strength ≥ 1,282 MPa, limited life range test ≥ 2,000,000 stress cycles without damage, ultimate tensile load ≥152,000 N, hardness (HV) ≥ 395. For wheel upgrades, these BONOSS forged wheel bolts will be the best option.
Are BMW 1 Series Wheel Spacers Safe for Driving?
As long as you install them properly, quality hub-centric 12mm BMW 1 Series wheel spacers are safe for driving. To ensure perfect fitment, BONOSS makes adjustments to the hub-centric 5×120 wheel spacers according to the actual vehicle hub design. The hub-centric metal ring is machined to be multi-layers, and the bevels fit the corresponding hub flange, which eliminates any possible gaps. Such BONOSS forged lightweight plus hub-centric BMW 1 Series wheel spacers are the best spacers for your OEM or aftermarket wheels.
